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31. 发明授权

US08089197B2 Method for operating a piezoelectric element 有权
标题翻译：用于操作压电元件的方法
公开(公告)号：US08089197B2
公开(公告)日：2012-01-03
申请号：US12880321
申请日：2010-09-13
申请人： Franz Rinner , Alenko Lic
发明人： Franz Rinner , Alenko Lic
IPC分类号： H01L41/09 , H02N2/06
CPC分类号： F02D41/2096 , F02D2041/2048 , F02D2041/2051 , H02N2/062
摘要： A method for operating a piezoelectric element is disclosed. A first voltage is applied to a piezoelectric element and produces a first deflection of the piezoelectric element with a travel. An electrical discharge of the piezoelectric element after the application of the first voltage results in a first contraction of the piezoelectric element by a first compression. After the first contraction, a second voltage is applied to the piezoelectric element, whose polarity is opposite that of the first voltage and causes a further contraction of the piezoelectric element by a second compression. Repeated application of the first voltage after the electrical discharge of the applied second voltage results in a deflection of the piezoelectric element with the same travel.
摘要翻译：公开了一种用于操作压电元件的方法。对压电元件施加第一电压，并且以行程产生压电元件的第一偏转。在施加第一电压之后，压电元件的放电通过第一次压缩导致压电元件的第一次收缩。在第一收缩之后，第二电压被施加到极性与第一电压相反的压电元件，并且通过第二次压缩导致压电元件的进一步收缩。在施加的第二电压的放电之后重复施加第一电压导致压电元件以相同行程的偏转。

32. 发明申请

US20110279066A1 Method and Device for Controlling a Solid Body Actuator 有权
标题翻译：用于控制固体致动器的方法和装置
公开(公告)号：US20110279066A1
公开(公告)日：2011-11-17
申请号：US13133700
申请日：2009-11-24
申请人： Christian Reichinger , Hong Zhang
发明人： Christian Reichinger , Hong Zhang
IPC分类号： H01L41/09
CPC分类号： F02D41/2096 , H02N2/067
摘要： In a discharge process of the solid body actuator (2), a current that discharges the solid body actuator (2) loaded with electrical energy is detected. A switching element (6) is switched from an open position to a closed position to short circuit the solid body actuator (2) for removal of electrical energy from the solid body actuator (2) through the switching element (6) depending on the current falling below a threshold of the current, wherein the magnitude of the threshold is specified.
摘要翻译：在固体致动器（2）的放电过程中，检测出负载有电能的固体致动器（2）的放电电流。开关元件（6）从打开位置切换到关闭位置，以使固体致动器（2）短路，以根据电流从固体驱动器（2）通过开关元件（6）去除电能低于电流的阈值，其中指定阈值的幅度。

33. 发明授权

US08051839B2 Injection control system 有权
标题翻译：注射控制系统
公开(公告)号：US08051839B2
公开(公告)日：2011-11-08
申请号：US12283338
申请日：2008-09-11
申请人： Peter J. Spadafora , Daniel Jeremy Hopley , Adrian R. Tolliday
发明人： Peter J. Spadafora , Daniel Jeremy Hopley , Adrian R. Tolliday
IPC分类号： F02M37/04 , F02M51/00
CPC分类号： F02D41/2096 , F02D2041/2051
摘要： A method of operating a fuel injector including a piezoelectric actuator having a stack of piezoelectric elements, and wherein in use the injector communicates with a fuel rail, the method comprises: applying a discharge current to the actuator for a discharge period so as to discharge the stack from a first differential voltage level across the stack to a second differential voltage level across the stack; maintaining the second differential voltage level for a period of time; and applying a charge current to the actuator for a charge period so as to charge the stack from the second differential voltage level to a third differential voltage level; wherein the third differential voltage level is selected in dependence on at least two engine parameters, the at least two engine parameters selected from: rail pressure; the electric pulse time; and the piezoelectric stack temperature.
摘要翻译：一种操作燃料喷射器的方法，所述燃料喷射器包括具有压电元件叠层的压电致动器，并且其中在使用中所述喷射器与燃料轨连通，所述方法包括：将放电电流施加到所述致动器放电时间段，跨越堆叠的第一差分电压电平堆叠到跨过堆叠的第二差分电压电平; 将第二差分电压电平维持一段时间; 以及将充电电流施加到所述致动器的充电周期，以将所述堆叠从所述第二差分电压电平充电到第三差分电压电平; 其中所述第三差分电压电平根据至少两个发动机参数来选择，所述至少两个发动机参数选自：轨道压力; 电脉冲时间; 和压电叠层温度。

34. 发明申请

US20110180046A1 METHOD FOR OPERATING A FUEL INJECTOR 有权
标题翻译：燃油喷射器的操作方法
公开(公告)号：US20110180046A1
公开(公告)日：2011-07-28
申请号：US12304529
申请日：2007-11-23
申请人： Hans-Peter Lehr , Erik Tonner
发明人： Hans-Peter Lehr , Erik Tonner
IPC分类号： F02M51/00
CPC分类号： F02D41/2096 , F02M51/0603
摘要： A method is for operating a fuel injector, in particular of an internal combustion engine of a motor vehicle, the fuel injector including a piezoelectric actuator for driving a valve needle, which is connected, preferably hydraulically, to the actuator, and the control voltage of the piezoelectric actuator being analyzed to infer an operating state of the fuel injector. According to this method, the second time derivative of the control voltage and/or a variable depending on the second time derivative of the control voltage is/are analyzed.
摘要翻译：一种用于操作特别是机动车辆的内燃机的燃料喷射器的方法，所述燃料喷射器包括用于驱动阀针的压电致动器，所述压电致动器优选地液压地连接到所述致动器，并且所述控制电压分析压电致动器以推断燃料喷射器的操作状态。根据该方法，分析控制电压的第二时间导数和/或取决于控制电压的第二时间导数的变量。

35. 发明申请

US20110180044A1 METHOD AND DEVICE FOR CORRECTING A TEMPERATURE-DEPENDENT LENGTH CHANGE OF AN ACTUATOR UNIT DISPOSED IN THE HOUSING OF A FUEL INJECTOR 审中-公开
标题翻译：用于校正在燃料喷射器的壳体中处理的致动器单元的温度依赖性长度变化的方法和装置
公开(公告)号：US20110180044A1
公开(公告)日：2011-07-28
申请号：US13062063
申请日：2009-08-19
申请人： Jürgen Fritsch
发明人： Jürgen Fritsch
IPC分类号： F02D41/14 , G01R27/00
CPC分类号： H02N2/062 , F02D41/2096 , F02D41/221 , F02D41/2467 , F02D2041/1432 , F02D2041/2055 , F02D2200/0602 , F02M61/167 , F02M63/0026 , F02M2200/24
摘要： A method and a device correct a temperature-dependent length change of an actuator unit (3) disposed in a housing (2) of a fuel injector (1). A known method of maintaining an idle stroke (L) formed between the actuator unit (3) and a control valve of the fuel injector involves compensating for a temperature-dependent length change by measuring the capacity of the actuator unit (3) and thereby determining the temperature (Ta). However, in the process an additional test impulse is used to trigger the actuator unit (3). Therefore, it is proposed to forego the use of a test impulse and to measure the capacity (CA-PA) directly at an active trigger impulse. The method is much more precise and reliable since the current operating parameters, such as fuel pressure, fuel temperature and actuation energy, among others, are taken into account.
摘要翻译：一种方法和装置校正设置在燃料喷射器（1）的壳体（2）中的致动器单元（3）的与温度有关的长度变化。维持在致动器单元（3）和燃料喷射器的控制阀之间形成的空转行程（L）的已知方法包括通过测量致动器单元（3）的容量来补偿温度依赖的长度变化，从而确定温度（Ta）。然而，在该过程中，使用附加的测试脉冲来触发致动器单元（3）。因此，建议放弃使用测试脉冲并直接在主动触发脉冲下测量容量（CA-PA）。该方法更精确和可靠，因为考虑了当前的操作参数，例如燃料压力，燃料温度和致动能量等。

36. 发明申请

US20110140685A1 METHOD FOR DIAGNOSING A LOAD DROP 审中-公开
标题翻译：用于诊断负载下降的方法
公开(公告)号：US20110140685A1
公开(公告)日：2011-06-16
申请号：US12736848
申请日：2009-04-22
申请人： Yanqi Zu , Stefan Schempp , Matthias Bitzer
发明人： Yanqi Zu , Stefan Schempp , Matthias Bitzer
IPC分类号： G01R19/00 , G06F19/00
CPC分类号： F02D41/2096 , F02D41/22 , F02D2041/2051 , F02D2041/2089
摘要： A method for diagnosing a load drop in a piezo actuator in an injection device, a voltage being measured and being compared to a threshold voltage (24) for the diagnosis, the load drop being present if the measured voltage is greater than the threshold voltage (24). The present invention also relates to a device for diagnosing a load drop in a piezo actuator in an injection device, to a computer program and to a computer program product.
摘要翻译：一种用于诊断注射装置中的压电致动器中的负载下降的方法，正在测量的电压并将其与用于诊断的阈值电压（24）进行比较，如果测量的电压大于阈值电压，则存在负载下降（ 24）。本发明还涉及用于诊断注射装置中的压电致动器，计算机程序和计算机程序产品中的负载下降的装置。

37. 发明授权

US07930088B2 Method and device for controlling an internal combustion engine 有权
标题翻译：用于控制内燃机的方法和装置
公开(公告)号：US07930088B2
公开(公告)日：2011-04-19
申请号：US11883279
申请日：2005-12-29
申请人： Hong Zhang
发明人： Hong Zhang
IPC分类号： B60T7/12
CPC分类号： F02D41/2096 , F01N13/009 , F02D35/023 , F02D41/008 , F02D41/3029 , F02D41/40 , F02D2200/063 , F02M61/161 , Y02T10/44
摘要： An internal combustion engine is with an injection valve for metering a fuel directly into a combustion chamber during injection. The injection valve is provided with an injection needle whose stroke can be variably adjusted for a given injection process. During the homogenous operation of the internal combusting engine with a desired homogenous fuel distribution, the inventive method consists in predefining a fuel pressure set value, in associating a predefined minimum stroke set value with an injection needle stroke set value, in adjusting a meterable fuel mass set value by modifying an injection duration set value when said injection duration is equal to or less than a predefined maximum duration value. If not, the injection needle stroke set value is modified until the injection duration set value is equal or greater than said predefined maximum duration value. Afterwards, the injection needle stroke and injection duration set value is respectively adjusted.
摘要翻译：内燃机具有用于在注射期间将燃料直接计入燃烧室的喷射阀。注射阀设置有注射针，其针对给定的注射过程可以可变地调节行程。在具有期望的均匀燃料分配的内部燃烧发动机的均匀操作期间，本发明的方法包括在将预定的最小冲程设定值与喷射针冲程设定值相关联的情况下预定义燃料压力设定值，以调整可计量的燃料质量当所述喷射持续时间等于或小于预定义的最大持续时间值时，通过修改喷射持续时间设定值来设定值。如果不是，则注射针冲程设定值被修改，直到喷射持续时间设定值等于或大于所述预定的最大持续时间值。之后，分别调整注射针冲程和注射持续时间设定值。

38. 发明授权

US07825637B2 Method and device for controlling a capacitive load 有权
标题翻译：用于控制容性负载的方法和装置
公开(公告)号：US07825637B2
公开(公告)日：2010-11-02
申请号：US11793991
申请日：2005-11-11
申请人： Christian Augesky , Martin Götzenberger
发明人： Christian Augesky , Martin Götzenberger
IPC分类号： H02J7/00
CPC分类号： F02D41/2096 , F02D2041/2024 , H02N2/067
摘要： A capacitive load is controlled by charging and respectively discharging by way of a load current, which is allowed to oscillate between a maximum default and a minimum default. The maximum default increases monotonously in a first step, remains essentially constant in a second step, and decreases monotonously in a third step during a charging process. The minimum default decreases monotonously in a first step, remains essentially constant in a second step, and increases monotonously in a third step during a discharging process. A variable temporal overlap of the third step of the charging process and the first step of the subsequent discharging process is provided to set a required degree of charging. This results in a high level of resolution and reproducibility of the control.
摘要翻译：容性负载通过充电控制，并通过允许在最大默认值和最小默认值之间振荡的负载电流分别放电。最大默认值在第一步骤中单调增加，在第二步中保持基本恒定，并且在充电过程中在第三步骤中单调减少。最小默认值在第一步骤中单调减少，在第二步骤中基本保持不变，并且在放电过程中在第三步骤中单调增加。提供充电过程的第三步骤和随后的放电过程的第一步骤的可变时间重叠以设定所需的充电程度。这导致控制的高水平的分辨率和再现性。

39. 发明授权

US07819335B2 Control system and method for operating an ultrasonic liquid delivery device 有权
标题翻译：用于操作超声波液体输送装置的控制系统和方法
公开(公告)号：US07819335B2
公开(公告)日：2010-10-26
申请号：US11780840
申请日：2007-07-20
申请人： Thomas David Ehlert , Patrick Sean McNichols , Douglas M. Baker
发明人： Thomas David Ehlert , Patrick Sean McNichols , Douglas M. Baker
IPC分类号： B05B17/04
CPC分类号： F02M69/041 , F02D41/2096 , F02D41/2467 , F02M27/08 , F02M47/027 , F02M61/10 , F02M2200/21 , F02M2200/24 , F02M2547/003
摘要： In a control system and method for operating an ultrasonic liquid delivery device, an ultrasonic waveguide, separate from the housing, is disposed at least in part within an internal chamber of the housing to ultrasonically energize liquid prior to the liquid being exhausted from the housing through an exhaust port. An excitation device is operable to ultrasonically excite the waveguide and a control system controls operation of the liquid delivery device between an excitation mode in which the excitation device is operated at an excitation frequency to excite the ultrasonic waveguide and a ring down mode in which the excitation device is inoperable to excite the waveguide such that the waveguide rings down. The control system monitors the ring down and is responsive to the ring down to adjust the excitation frequency of the excitation device in the excitation mode thereof.
摘要翻译：在用于操作超声波液体输送装置的控制系统和方法中，与壳体分离的超声波导管至少部分地设置在壳体的内部腔室内，以在液体从壳体排出之前对液体进行超声波激励以使液体被排出排气口。励磁装置可操作以超声波激发波导，并且控制系统控制在励磁装置以激励频率操作以激励超声波波导的激励模式和其中激励的环形降低模式的液体输送装置的操作器件不能激发波导使得波导环向下。控制系统监控环形并且响应于下降以在其激励模式中调节激励装置的激励频率。

40. 发明授权

US07815128B2 Method and injection system for injecting a fluid 有权
标题翻译：用于注射流体的方法和注射系统
公开(公告)号：US07815128B2
公开(公告)日：2010-10-19
申请号：US11755018
申请日：2007-05-30
申请人： Jörg Beilharz , Nicholas Nozeran , Richard Pirkl , Christian Riβler , Harald Schmidt , Hans-Jörg Wiehoff
发明人： Jörg Beilharz , Nicholas Nozeran , Richard Pirkl , Christian Riβler , Harald Schmidt , Hans-Jörg Wiehoff
IPC分类号： F02D1/06
CPC分类号： F02D41/2096
摘要： A method for injecting a fluid, in particular a fuel, performs the following steps: A nozzle (1) which can be actuated by a piezo element (5) is provided. A current pulse (12a) is supplied to the piezo element (5). The capacity (16) of the piezo element (5) is recorded at the time when the current pulse (12a) is supplied. An actual characteristic curve of the injection is recorded based on the capacity (16). The current pulse (12a) is regulated in order to optimize the injection based on the actual characteristic curve of the injection.
摘要翻译：一种用于喷射流体，特别是燃料的方法，进行以下步骤：可由压电元件（5）致动的喷嘴（1）。电流脉冲（12a）被提供给压电元件（5）。在提供电流脉冲（12a）的时刻记录压电元件（5）的容量（16）。基于容量记录注射的实际特性曲线（16）。调整电流脉冲（12a），以便根据注射的实际特性曲线优化注射。

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